Breath. Take a second and look up how to take a proper pic of a mini if you have to. If the image looks blurry on your screen, I have a surprise for you, but its going to look blurry on ours even after you upload it to magic internet land.
First of all, experiment and take some pics until you can get one that is actually in focus.
You are not a photographer with a 1000$ macro lense are you? Then get back from that model. You don't have to take the photo from an inch away (and will always have problems with focus on your phone that way).
Consider a timer for the picture. Consider propping it on something so your hands are not moving. If you have to hold it, breathe OUT slowly as you take the picture. You are more steady at that moment. That tip may help you kill a man to save your life some day ;)
Next, your image resolution when you upload is way too large. The model ends up being like 2 feet tall at your resolution. Its like watching a movie from the front row. Its hard to take everything in and obviously every little mistake that you wouldn't ever notice on the model becomes like 3 inches big.
So, take the pic further back, focused, with lots of dead space around it.
Open it in an image editor, auto adjust "levels" to let the program do the work of correcting colours that your phone didnt grab properly in preprocessing, crop the dead space around the model, resize it to like a width of 800 pixels.
This photo is after processing to upload to WIP.
I also export them from GIMP at 50% quality. Why? Because the file was 1.9MB and now it is 68.7kb and if you looked at the two images side by side, you couldn't tell the difference.
The next image will be this same picture, but PREprocessing (that is, straight from my phone).
protip: I have dropbox on my phone and computers. The instant I take a picture it is instantly transferred to all my systems.